For this security-focused windows project in Neston, opening checks, frame fitting and finishing are treated as one sequence. Reveal Dimensions leads the review, so we check internal and external reveal depths so trims, plaster and handle clearances can be coordinated, with reveal dimensions kept as the lead check for this security-focused windows scope. We use internal sealing and keeps around locking points, hinges, keeps, handle operation and frame alignment, ensuring we close the internal frame perimeter cleanly before trims or making-good work is completed and adjust keeps to achieve consistent engagement without making operation unnecessarily stiff, with reveal dimensions kept as the lead check for this security-focused windows scope. The last technical check is trims; we coordinate internal or external trims with reveals, frame position and adjoining finishes, with reveal dimensions kept as the lead check for this security-focused windows scope. This supports replacement windows with hardware performance checked as part of final adjustment.